springMVC图片上传

最新推荐文章于 2024-05-09 14:18:14 发布

原创最新推荐文章于 2024-05-09 14:18:14 发布 · 321 阅读

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本文介绍了一个使用Spring MVC框架实现的简单单文件上传功能。通过示例代码展示了从控制器处理请求、文件上传到展示上传成功的页面流程。具体包括控制器层的文件接收与保存逻辑及对应的JSP页面设计。

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跳转到页面

package lesson5.com.jkxy.springmvc.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

@Controller
public class ToolController {
@RequestMapping("topage")
public String toPage(){
return "oneUpload";
}
}

jsp页面

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>单文件上传</title>
</head>
<body>
<div style="margin: 0 auto;margin-top: 100px;">
<form action="oneUpload.html" method="post" enctype="multipart/form-data">
<p>
<span>文件：</span>
<input type="file" name="imageFile">
</p>
<p>
<input type="submit" value="提交">
</p>
</form>
</div>
</body>
</html>

控制器层

package lesson5.com.jkxy.springmvc.controller;

import java.io.File;
import java.io.IOException;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

@Controller
public class UploadController {
@RequestMapping("/oneUpload")
public String oneUpload(@RequestParam("imageFile") MultipartFile imageFile,HttpServletRequest request ){
//获取图片的上传路径
String uploadUrl = request.getSession().getServletContext().getRealPath("/")+"upload/";
//获取文件的名字
String filename = imageFile.getOriginalFilename();
String uploadPath="upload/"+filename;
request.setAttribute("imagePath", uploadPath);
File dir = new File(uploadUrl);
if(!dir.exists()){
dir.mkdirs();
}
File targerFile = new File(uploadUrl+filename);
if(!targerFile.exists()){
try {
targerFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
try {
imageFile.transferTo(targerFile);
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "success";
}
}

成功页面